Finding the Fourth Proportional to 1,415,228.40, 2,119,732.20 and 853,282.80
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Solution
The fourth proportional to 1,415,228.40, 2,119,732.20 and 853,282.80 is: 1,278,048.85
Step by Step Solution
- Step 1: Write the proportion equation
1,415,228.40 : 2,119,732.20 = 853,282.80 : x - Step 2: Convert to fraction form
1,415,228.40/2,119,732.20 = 853,282.80/x - Step 3: Cross multiply
1,415,228.40x = 2,119,732.20 × 853,282.80 - Step 4: Simplify right side
1,415,228.40x = 1,808,731,026,866.16 - Step 5: Solve for x
x = 1,808,731,026,866.16/1,415,228.40 - Step 6: Final answer
x = 1,278,048.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.